Pro climber Yves Gravelle asks an evolutionary biologist how his gear measures up with the highly specialized mountain goat.

Rambunctiousness and youth go hand-in-hand. Especially when goat kids are involved. These diminutive, adorable creatures are pretty much just tiny balls of energy. They love climbing on anything ...

Every now and then, a hiker, climber or biologist lays eyes on a mountain goat in the nooks and crannies of the mighty Teton Range. There’s a good likelihood that the unwanted, nonnative animal ...